[目的]建立一种准确鉴别鸡蛋花和布渣叶红外光谱图的方法.[方法]利用MIR分别采集鸡蛋花和布渣叶样品的红外指纹光谱图,选取指纹区信息作为观测变量,采用主成分分析法对其进行鉴别.[结果] MIR指纹结合主成分分析法可根据MIR光谱信息明显地将鸡蛋花和布渣叶鉴别出来.[结论] MIR指纹结合主成分分析法客观、准确、快速,可应用于鉴别归属不同药材的红外光谱图.%[Objective] The research aimed to establish an accurate method to identify the infrared spectrums of Microcos paniculata and Plumeria rubra.[Method] Collecting the IR fingerprint of Microcos paniculata and Plumeria rubra samples by MIR,take the information of fingerprint region as observed variables,and then identify analysis them combining with principal component analysis.[Result] According to the infrared spectrum information,we could obviously differentiate the Micmcos paniculata and Plumeria rubra by MIR fingerprinting combined with principal component analysis.[Conclusion] MIR fingerprinting combined with principal component analysis is objective,accurate and fast,which could be used to identify the infrared spectrum of different Chinese medical herbs.
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